Model 320 Tire-coupled Road Simulators

Apply vertical forces through vehicle tires to replicate the effects of real-world road loads on a wide range of vehicles. The original laboratory-based road simulator, today’s Model 320 combines linear electric or servohydrualic actuation, FlexTest controls and RPC or First Road Interact software to support applications ranging from end-of-line production quality to vibration transmissibility to durability.


  • Durability
  • Noise and Vibration Transmissibility
  • NVH
  • BSR
  • Ride / Comfort Assessment
  • Road Holding
  • Production End-of-Line - Quality Control

Test Specimens

  • Passenger Cars and SUVs
  • Light Trucks
  • Heavy Trucks
  • Motorcycles
  • All-Terrain Vehicles
  • Off-highway Vehicles
  • Motorsport Vehicles

Key Product Features

Durable / Reliable

Model 320 systems can perform in high duty cycle and high capacity testing for decades without a breakdown, requiring only limited routine maintenance and service.

Accurate / Repeatable Results

High-performance MTS servohydraulic or electric actuation delivers precise, high fidelity road load reproductions.

Efficient Operation

Versatile 793 controller software, renowned RPC software and easy-to-use First Road Interact software enhance the operational efficiency of both novice and expert lab personnel.


The Model 320 product line can test all types of ground vehicles, including motorcycles, scooters and ATVs; passenger cars, light and heavy trucks; as well as train cars and off highway vehicles.

Model Comparison

First Road Systems

  • Servohydraulic 4 post system
  • 25 kN actuators with 6” displacement
  • First Road Interact application software with tablet control
  • Automatic Vehicle positioning system (X/Y)
  • Applications: End-of-line Production Quality, BSR, Ride Comfort

Passenger Car & Light Truck Systems

  • Electric or Servohydraulic 4-post actuators 
  • 25 kN – 50 kN actuators with 10” - 12” (254 mm – 305 mm) displacement
  • Vehicle positioning systems (X/Y) available
  • Optional actuators with a low flow mode for human-rated operation
  • Environmental Chamber integration available
  • Applications: Durability, Ride Comfort, NVH

Medium - Heavy Truck Systems

  • Servohydraulic 4 – 8+ actuator system
  • 100 kN – 250 kN+ Force capacity, with 12” actuator stroke (typical)
  • Adjustable Static Support for high unsprung mass vehicles
  • Multi- Pump Control Manager for multi HPU systems
  • Vehicle stability fixtures available
  • Applications: Durability

High-performance Vehicle Systems

  • Servohydraulic 7-8 actuator systems
  • 38 kN Vertical actuators with 10” (254mm) displacement
  • Includes 3-4 down force actuators, used to simulate aerodynamic forces on test specimen
  • Test Applications: Advanced Durability, Road holding (chassis setup)

Motorcycle Systems

  • Servohydraulic 2/4 post systems
  • 25 kN – 50 kN actuators with 6”- 16”+ (152 mm -406 mm+) displacement 
  • Vehicle stability control fixtures included
  • Optional sliding wheel pans available to follow arcing suspension travel
  • Applications: Durability, BSR, NVH

Featured Case Studies

KOBELCO Research Institute: Evolving in Scope and Scale
Piaggio Group: Maneuvering Through Traffic

Technical Overview

Model 320 SH


  1. FlexTest Controller with Uninterruptible Power Supply (UPS) 
  2. PC workstation with FlexTest controller software (793) and RPC Pro application software
  3. Hydraulic distribution manifold with accumulators
  4. Model 248 Actuator with closed-coupled accumulators
  5. Vehicle Trackwidth & Wheelbase (X/Y) Positioning System
  6. Seismic Reaction Mass
  7. Hydraulic Service Manifold (HSM)
  8. SilentFlo Hydraulic Power Unit (HPU)
Model 320 System


  1. PC workstation with FlexTest controller software (793) and RPC Pro application software
  2. FlexTest Controller with Uninterruptible Power Supply (UPS)
  3. Vehicle Trackwidth & Wheelbase (X/Y) Positioning System
  4. ePOST linear electric actuator with pneumatic static support
  5. Seismic Reaction Mass
  6. Drive Cabinet Chiller 
  7. Electric Drive Cabinet

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